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Chryco's Tech Shop
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Engine & Go Fast Goodies
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Small block valve train alignment issue.
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Topic: Small block valve train alignment issue. (Read 810 times)
torredcuda
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Posts: 6218
Epping NH joined 11/23/03
Small block valve train alignment issue.
«
on:
May 28, 2007 - 03:21:40 PM »
I have stock 915 heads with Crane ductile iron adjustable rockers and while assembling things noticed that some of the rocker tips don`t align in the center of the valve tip.The rockers are held out against the stock spacers using springs in between them and I`m wondering if they could be more centered using spacers instead of the springs.I`ve been running them this way for years but am I doing any damage or is it no big deal?Are there spacers available or do I need to custom make them?I noticed a pic of the stock 273 setup and they use spacers.
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Jeff
72 Barracuda 340/4spd Torred
70 roadrunner 383/auto In-Violet
70 Duster 360/auto drag car (Petty Blue soon)
04 Ram 2500 5.7 Hemi
ntstlgl1970
Resident
Posts: 2204
T a c o c a t
Re: Small block valve train alignment issue.
«
Reply #1 on:
May 28, 2007 - 03:38:52 PM »
Can you take a picture? Maybe the spacers got mixed up if you had the rockers off the shafts?
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70 Cuda, 7.0L Gen-III Hemi, Viper T56 w/9310 gearset, 3.91's, Megasquirt MS3x v3.57, Innovate wideband, Firm Feel upper arms, torsion bars, springs and strut rods, QA1 DA shocks. I did everything on this car except the fancy paint stuff and I drive it...and I can't seem to stop messing with it....
torredcuda
Sr. Resident
Posts: 6218
Epping NH joined 11/23/03
Re: Small block valve train alignment issue.
«
Reply #2 on:
May 28, 2007 - 03:45:54 PM »
I`m charging the camera batteries and i`ll get a pic up as soon as I can.There are no spacers provided with the Crane set,just springs to hold them out against the factory hold downs.
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Jeff
72 Barracuda 340/4spd Torred
70 roadrunner 383/auto In-Violet
70 Duster 360/auto drag car (Petty Blue soon)
04 Ram 2500 5.7 Hemi
torredcuda
Sr. Resident
Posts: 6218
Epping NH joined 11/23/03
Re: Small block valve train alignment issue.
«
Reply #3 on:
May 28, 2007 - 04:03:57 PM »
Harland Sharp sells shims in different widths under repalcement components.Wonder if they will work for me?
http://www.harlandsharp.com/
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Jeff
72 Barracuda 340/4spd Torred
70 roadrunner 383/auto In-Violet
70 Duster 360/auto drag car (Petty Blue soon)
04 Ram 2500 5.7 Hemi
Chryco Psycho
Administrator
C-C.com Guru
Posts: 36620
70 Challenger R/T SE 70 tube Chassis Cuda now sold
Re: Small block valve train alignment issue.
«
Reply #4 on:
May 28, 2007 - 11:24:39 PM »
Mopar sells packs of shims as well if you want to remove the springs entgirely you need a spacer ring the correct width
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Challenger - You`ll wish You Hadn`t
LAA66
Sr. Member
Posts: 1669
Re: Small block valve train alignment issue.
«
Reply #5 on:
May 29, 2007 - 06:50:55 PM »
I made custom spacers from aluminum.Trouble is after a while the soft metal wore. Recently installed valve spring shims to compensate w/0.875 ID. Use a hardened material if you go the positive spacer route.
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torredcuda
Sr. Resident
Posts: 6218
Epping NH joined 11/23/03
Re: Small block valve train alignment issue.
«
Reply #6 on:
May 30, 2007 - 06:36:00 PM »
I`m ordering a selection of spacers from Harland Sharp and will custom grind them to the sizes I need for alignment.
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Jeff
72 Barracuda 340/4spd Torred
70 roadrunner 383/auto In-Violet
70 Duster 360/auto drag car (Petty Blue soon)
04 Ram 2500 5.7 Hemi
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Small block valve train alignment issue.